There are
1,970 mi
from St Charles, IL to Pasadena, CA
That's the driving distance. It would take 1 day 10 hours to go from St Charles, Illinois to Pasadena, California.
The flight distance (direct flight from St Charles, IL to Pasadena, CA) is 1,699.98 mi.
1,970 mi = 3,170.72 kms